Viking VK531 Technical Data page 2

Quick response extra-large orifice upright sprinkler

Technical data manual (13 pages)

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Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com

Visit the Viking website for the latest edition of this technical data page: www.vikinggroupinc.com

Finish Suffix: Brass = A, Chrome = F, White Polyester = M-/W, Black Polyester = M-/B, ENT = JN

Temperature Suffix: 155 °F (68 °C) = B, 175 °F (79 °F) = D, 200 °F (93 °C) = E, 286 °F (141 °C) = G, OPEN = Z (PTFE only).

For example, sprinkler VK531 with a Brass finish and a 155 °F (68 °C) temperature rating = Part No. 10633AB

Available Finishes And Temperature Ratings: Refer to Table 1.

Accessories: (Also refer to the Viking website.)

Sprinkler Wrenches:

A. Standard Wrench: Part No. 05118CW/B (available since 1981).

B. Wrench for coated sprinklers: Part No. 11663W/B** (available since 2001)

**A ½" ratchet is required (not available from Viking).

Sprinkler Cabinets:

A. Six-head capacity: Part No. 01724A (available since 1971)

B. Twelve-head capacity: Part No. 01725A (available since 1971)

4. INSTALLATION

Refer to appropriate NFPA Installation Standards.

5. OPERATION

During fire conditions, when the temperature around the sprinkler reaches its operating temperature, the heat-sensitive liquid in

the glass bulb expands, causing the bulb to shatter, releasing the pip cap and sealing spring assembly. Water flowing through the

sprinkler orifice strikes the sprinkler deflector, forming a uniform spray pattern to extin- guish or control the fire.

6. INSPECTIONS, TESTS AND MAINTENANCE

Refer to NFPA 25 for Inspection, Testing and Maintenance requirements.

7. AVAILABILITY

The Viking Quick Response Extra-Large Orifice Upright Sprinkler is available through a network of domestic and international dis-

tributors. See The Viking Corporation web site for the closest distributor or contact The Viking Corporation.

8. GUARANTEE

For details of warranty, refer to Viking's current list price schedule or

contact Viking directly.

Sprinkler Temperature

Classification

Ordinary

Intermediate

High

Sprinkler Finishes: Brass, Chrome, White Polyester, Black Polyester, and ENT

Corrosion-Resistant Coatings

except 135°F (57°C).

The sprinkler temperature rating is stamped on the deflector.

Based on NFPA-13. Other limits may apply, depending on fire loading, sprinkler location, and other requirements of the Authority Having Jurisdiction.

Refer to specific installation standards.

The corrosion-resistant coatings have passed the standard corrosion test required by the approving agencies indicated in the Approval Charts. These

tests cannot and do not represent all possible corrosive environments. Prior to installation, verify through the end-user that the coatings are compat-

ible with or suitable for the proposed environment. For automatic sprinklers, the coatings indicated are applied to the exposed exterior surfaces only.

Note that the spring is exposed on sprinklers with Polyester, and ENT. For all ENT coated sprinklers, the waterway is coated.

Form No. F_120699

18.10.11

The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058

TABLE 1: AVAILABLE SPRINKLER TEMPERATURE RATINGS AND FINISHES

Sprinkler Nominal

Temperature Rating

155 °F (68 °C)

175 °F (79 °C)

200 °F (93 °C)

286 °F (141 °C)

: White Polyester, and Black Polyester in all temperature ratings. ENT in all temperature ratings